package org.learn.filter;


import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

@WebFilter(filterName ="TestFilter",urlPatterns = "/*")
public class TestFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {

}

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
    System.out.println("执行Controller前的TestFilter处理");
    filterChain.doFilter(servletRequest,servletResponse);
    System.out.println("执行Controller后的TestFilter处理");
}

@Override
public void destroy() {

}
}
